QUESTION-6 What is the biggest problem of the single-phase AC motors? What kind of methods are...
Problem: (1) For the single phase AC circuit shown below, calculate voltage phasor across the load showing amplitude and phase angle for a (reference) source voltage of 220 V and 0 degree. Also, attach your MultiSIM simulation showing the voltage amplitude across the load. Compare simulated and calculated values. Load Bus of an Industrial Facility (equivalent of Electrical Motors and power factor correction Cap in parallel). R1 L1 Vload-? 1 3.0ohm 2 10mH 3 4.7mH 4 20ohm R2 +220V, 60...
1 A single phase AC system Consider a single phase AC distribution system in which there a single home connected to a 10kVA service transformer. Let’s assume that the primary of the distribution transformer can be modeled as an ideal 240V (rms) AC source and that the effective impedance of the transformer is 2% resistance and 3% reactance. (See lecture notes for converting % to Ohms). Connected to the secondary of the transformer is 200 ft of #6 AWG aluminum...
1-4.5 A company manufactures small electric motors having horse power ratings of 0.1, 0.5, or 1.0 horsepower and designed for operation with 120 V single-phase ac, 240 V single-phase ac, or 240 V three-phase ac·The motor types can be distinguished only PROBLEMS by their nameplates. A distributor has on hand 3000 motors in the quantities shown in the table below Horsepower 20 Vc 240 V ac 240 V 30 900 200 100 400 500 200 100 600 0.5 One motor...
a) In reference to a single phase circuit, briefly explain the response of relay during an in-zone, and through fault conditions. b) Explain the four factors that reliability of a transformer is dependent upon. c) List four methods of grounding an Electrical system d) Briefly, explain with a protection diagram how phase fault and earth fault relay(s)can be used to detect a stator short circuit faults on a polyphase induction motor
-Choose three (3) of the methods of problem solving. For each method summarize what is involved in that method and explain when that method would be best used.
solve the problem thks (e) Choose the correct completion: "Single-phase instantaneous power is ... i) ... time-varying and has no double-frequency terms." ii) ... time-varying and has double-frequency terms. iii) ... constant and has no double-frequency terms." iv) ... constant and has double-frequency terms." Briefly justify:
1. A single-phase, full wave rectifier has an AC source with Vm=24 volts at f=60 Hz. Determine the 2th harmonic of the output voltage. 2. The average current of a single phase bridge rectifier at its DC side is 6.94 amps. What is the average current flowing through each diode?
please solve this problem with detail explainations. Thanks Problem # 1 If the available power source is a three-phase, 60 Hz, ac supply and a separately excited DC motor is to be fed from this source, configure possible drive circuits for iOne-Quadrant Operation, i) Two-Quadrant Operation ) Four- Quadrant Operation Hints: (See below for the single phase diagram) For one-quadrant operation, the motor control circuit is a half-wave controlled rectifier or a se controlled converter and the driver for the...
explain briefly (d) (4%) What kind of heaps is required in heap sort with non-decreasing order? Why? (e) (4%) Consider the single source all destinations problem. Explain why it is required that the graph have no cycles of negative length when negative edge lengths are permitted. (f) (6%) Consider the set representation using trees. If the sets being represented are pairwise disjoint, explain what the collapsing rule is. What scenario is more beneficial for the find operation applying collapsing rule?...
Single Plantwide and Multiple Production Department Factory Overhead Rate Methods and Product Cost Distortion Eclipse Motor Company manufactures two types of specialty electric motors, a commercial motor and a residential motor, through two production departments, Assembly and Testing. Presently, the company uses a single plantwide factory overhead rate for allocating factory overhead to the two products. However, management is considering using the multiple production department factory overhead rate method. The following factory overhead was budgeted for Eclipse: Assembly Department $280,000...